Hand-power



(No Model.)

' J. OUELLET.

HAND POWER. No 244,926.

Patented July 26, 1881.

'Lwma I Witnesses,

UNITED. STATES PATENT OFFICE.

JOSEPH QUELLET, 0F OHAU ERE'Juncriomnssienon oF'oNE-HALF T0 PAULIETIENNE GRANDBOIS, on FRASERVILLE, QUEBEC, CANADA.

HAND-POWER;

S]?ECIIEIGATIONv forming part of Letters, Patent No. 244,926, dated July 26,1881. Application filed March 2, 1881. (No model.)

To all whom it may concern:

Be it known that I, J osEPH OUELLET, ct-

hereinafter shown and described, for the conversion of reciprocating motion into rotative motion.

My invention overcomes the only objectiona'-' ble feature of the crank when it is turned by a pitm an or connecting-rod-namel y, the deadpoints-by providing that at all points in the circuit of the crank-wrist there is a pushing force out of the line of the dead-points. The means whereby this end is accomplished is fully illustrated in the annexed drawings, in which Figure 1 is a perspective-view of a machine embodying myinvention. Fig. 2 is a side elevation of the same.

A represents the main or driving shaft of the machine. In this shaft are formed two equal and adjacent, but opposite, cranks, a and b. To the wrist of these cranks are attached the ends of the two pitmen or connecting-rods c and d. The other end of these connecting-rods are pivoted to a double-handled lever, B. The points 6 and f, at which they are so pivoted to the lever, are at anapproved distance apart, and are equidistant from the center of oscillation of the lever B.

G is a standard forming part of the framework' by which the working parts are supthe crank-wrists in realityform the fulcra upon which the leverage is applied to the working of the machine, each crank-wrist, in turn, serving as a fulcrum to the opposite crank. From the distance apart at which the connectingrods 0 and d are pivoted to the lever B, it is obvious that the two cranks a, and b, to which they are connected, being opposite to each other, can never both be at the dead-points at the same time. The connecting-rods c and 01 working from different directions, it follows that when one of them is at the dead-point of the crank the other must be at some part of the working-stroke.

Another important part of my invention is the provision made for the vertical motion of the trunnions h in the slots g, and I will now proceed to describe the object of this arrangement. When one of the cranks is at the deadpoint it is evident that there must be considerably more rising or falling motion to the opposite crank with its connecting-rod, and also to that point of the lever B to which such connecting-rod is attached; and from this it is also clear that there must be a proportionate ascent or descent of the trunnions h or central portion of the leverB and that, were it not for this provision there must be a dead-lock in the movement of the machine when one of the cranks comes to the dead-point. That partof the trunnion which is between the two opposite sides of the standard 0 is somewhat larger than the journal parts which play within the slots. Shoulders are thereby formed which, coming against the inner faces of the opposite sides of the standard, prevent any undue endwise play of the trunnion.

Myinvention is applicable to the driving of railway hand-cars, household and farming implements--such as pumps, churns, &c.and might also be advantageously introduced into much of the mill and factory machinery at present in use.

Trains of gearing may be used in connection with my invention to increase or diminish the speed from that of the main shaft A to what may be required for the purpose for which the machine is to be used. If used for propelling hand cars, for instance, a gearing such as shown in the drawings would answer, and in that case the second shaft D would be one of the axles of the car, the car-wheels being secured to its outer ends in the usual manner.

I am aware that it is common in mechanics to connect a double crank-shaft by pitmen with reciprocating slides; but such arrangement has no bearing whatever upon my invention.

Having thus described my invention, what I claim is- 1. The combination of a shaft provided with two oppositely-proj ectin g cranks, an operatin glever, and two pitmen extended from opposite ends of said lever to the respective cranks, substantiall v as shown.

2. In combination with the lever and its movable guide, the shaft provided with two cranks, and the pitmen connecting the re- JOSEPH QUELLET.

Witnesses:

I. A. BOY, J. O. ROY. 

